• International Journal of Knowledge Content Development & Technology
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• 제10권2호
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• pp.39-49
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• 2020

Accurate and reliable Information improves decision making, reduces costs, and saves time. The ophthalmic Libraries supply quality ophthalmic information to the ophthalmologists to serve the patients in a better way and stimulate the growth of ophthalmic field. This paper aims to study the usage of library collection, services and assistance among the Ophthalmologists - Eye Doctors in India. A survey method is used to obtain the ophthalmologists' usage of library collection, services and assistance. Through convenient sampling method, a structured questionnaire is circulated to the ophthalmologists in India and 633 ophthalmologists are responded. Among the 633 ophthalmologist, 82.15% of the ophthalmologists use the library collection - book. 73.46% of the ophthalmologists use the online data / journals. 89.73% of the ophthalmologists seek assistance to locate books/articles/documents. There exists a significant difference between the ophthalmologists use of Library Service and gender (p value 0.001**). There exists a significant difference between the ophthalmologists use of Library Assistance / help and designation category (p value 0.000**). There exists a significant difference between the ophthalmologists use of Library Assistance / help and working experience (p value 0.017**). There exists a significant difference between Library Services (p value 0.009**), Library Assistance / help (p value 0.000**) and institution type. The study results will help the ophthalmic libraries to serve the user better.

• 한국의상디자인학회지
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• 제4권3호
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• pp.65-73
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• 2002

The purpose of this study was to prepare lesson plans, study aids and multimedia learning materials for the clothing units in TechnologyㆍHome economics of the 7th national curricula. It's also meant to utilize these materials in instruction in order to provide students with more direct and practical learning experience and make them capable of leading a successful life in the 21st century. 1. The teaching plans were mapped out for the clothing units in TechnologyㆍHome economics class for middle school grade 2, which were all covered by eight textbooks: clothing and life(the function of clothes, my attire, wearing a suit, and wearing Korean traditional dress), the preparation of garments(the type of fiber, understanding of stuff, and preparing garments), and cloth care and storage (washing, storage, alteration and recycling). 2. The lesson plans included information on the name of units, period, learning objectives, teaching environment, materials, learning content, introduction, development, remarks, topping off, announcement for next session, and related Web sites. 3. To raise the effect of education, study aids were developed to be appropriate for the units. The lesson plans and study aids for the clothing part of TechnologyㆍHome economics class for middle school grade 2 would serve to help students build the right clothing habits, and are expected to serve as good teaching materials.

• 조명전기설비학회논문지
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• 제19권7호
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• pp.73-80
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• 2005

직립보행로봇은 동적인 시스템 구현을 위해 에너지원과 제어장치부가 로봇에 탑재되어야 한다. 때문에 본 연구에서는 소형에서 높은 기동 토크를 얻을 수 있는 직류전동기를 선택하였다. 직류전동기 서보시스템에는 아날로그 처리방식의 파워앰프를 이용하여, 제어기와 구동기가 일체화된 하나의 모들로 개발하였다. 이를 로봇액추에이터에 적용하고 동작과 복귀시의 응답특성을 연구하였다. 주 제어부는 PIC(Micro controller)를 채용하여 서보시스템과 함께 소형경량으로 로봇에 탑재할 수 있다.

• Advances in concrete construction
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• 제5권3호
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• pp.201-219
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• 2017

With the rapid growth in construction sector, it becomes all the more important to assess the amount of Construction and Demolition (C&D) waste being generated and analyze the practices needed to handle and use this waste before final disposal. This serves waste management and disposal issues, paving way to waste utilization in construction industry from the sustainability point of view. C&D waste constitutes a major bulk of total solid waste produced in the world. In this work, an attempt is made to study the performance of concrete using water soaked Recycled Coarse Aggregates (RCA) in replacement levels of 0%, 25%, 50%, 75% and 100% to Natural Coarse Aggregates (NCA). Experiments were designed and conducted to study the performance of RCA based concrete. Further suitable performance enhancement techniques to RCA based concrete were attempted, to achieve compressive strength at least equal to or more than that for no RCA based concrete (control concrete). Performance enhancement study is reported here for 50% and 100% RCA based concretes. All four techniques attempted have given favorable results encouraging use of RCA based concretes with full replacement levels, to adopt RCA based concrete in structural applications, without any kind of concern to the stake holder. Further attempts have also been made to use Recycled Fine Aggregates (RFA) with appropriate modifications to serve as fine aggregates in mortar and concrete. Using RFA blended with river sand fractions as well as RFA with Iron Ore Tailings (IOT) fractions, have given good results to serve as fine aggregates to the extent of 100% replacement levels in mortars and concretes.

• Structural Engineering and Mechanics
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• 제17권3_4호
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• pp.393-408
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• 2004

There exists a clear need to monitor the performance of civil structures over their operational lives. Current commercial monitoring systems suffer from various technological and economic limitations that prevent their widespread adoption. The wires used to route measurements from system sensors to the centralized data server represent one of the greatest limitations since they are physically vulnerable and expensive from an installation and maintenance standpoint. In lieu of cables, the introduction of low-cost wireless communications is proposed. The result is the design of a prototype wireless sensing unit that can serve as the fundamental building block of wireless modular monitoring systems (WiMMS). An additional feature of the wireless sensing unit is the incorporation of computational power in the form of state-of-art microcontrollers. The prototype unit is validated with a series of laboratory and field tests. The Alamosa Canyon Bridge is employed to serve as a full-scale benchmark structure to validate the performance of the wireless sensing unit in the field. A traditional cable-based monitoring system is installed in parallel with the wireless sensing units for performance comparison.

• Smart Structures and Systems
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• 제3권3호
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• pp.321-340
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• 2007

Structural control technologies have attracted great interest from the earthquake engineering community over the last few decades as an effective method of reducing undesired structural responses. Traditional structural control systems employ large quantities of cables to connect structural sensors, actuators, and controllers into one integrated system. To reduce the high-costs associated with labor-intensive installations, wireless communication can serve as an alternative real-time communication link between the nodes of a control system. A prototype wireless structural sensing and control system has been physically implemented and its performance verified in large-scale shake table tests. This paper introduces the design of this prototype system and investigates the feasibility of employing decentralized and partially decentralized control strategies to mitigate the challenge of communication latencies associated with wireless sensor networks. Closed-loop feedback control algorithms are embedded within the wireless sensor prototypes allowing them to serve as controllers in the control system. To validate the embedment of control algorithms, a 3-story half-scale steel structure is employed with magnetorheological (MR) dampers installed on each floor. Both numerical simulation and experimental results show that decentralized control solutions can be very effective in attaining the optimal performance of the wireless control system.

• 한국안전학회지
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• 제31권2호
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• pp.83-89
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• 2016

As the world's industrial development quickens, the highways and regional expressways have been expanding to serve the logistics and transportation needs of people. The burgeoning road construction has led to a growing interest in roadside installations. These must have reliable performance over long periods, reduced maintenance and high durability. Steel roadside barriers are prone to corrosion and other compromises to their functionality. Therefore, using high anti-corrosion steel material is now seen as a viable solution to this problem. Thus, the objective of this paper is to expand the scope of applications for high anti-corrosion steel material for roadside barriers. This paper assesses the impact safety such as structural performance, occupant protection performance and post-impact vehicular response performance by a simulation review on roadside barriers built with high strength anti-corrosion steel materials named as hot-dip zinc-aluminium-magnesium alloy-coated steel. The simulation test results for the roadside barriers built with high strength anti-corrosion steels with reduced sectional thickness meet the safety evaluation criteria, hence the proposed roadside barrier made by high strength and high anti-corrosion hot-dip zinc-aluminium-magnesium alloy-coated steel will be a good solution to serve safe impact performance as well as save maintenance cost.

• 기본간호학회지
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• 제10권1호
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• pp.37-46
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• 2003

Purpose: This study investigated the burden of preceptors in order to improve preceptorship in nursing practice. Method: The participants were 170 preceptors at three hospitals in Pusan. The data were collected using questionnaires completed between July and September 2002, which included items to measure burden and opinions to reflect the demands of preceptors. They were analyzed using mean score, frequencies, and content analysis. Result: 1) The preceptors had an average of 6.3 years of clinical experience, while the practical career of a preceptor averaged 1.9 years. The average period of new nurse education was 5.5 weeks. Each year, 1.9 new nurses were trained per preceptor. 2) Of the preceptors 54.7% had received compensation without formal rules. but 54.1% did not want to serve further as preceptors because of overwork, lack of educational preparation, and lack of compensation. They were looking for solutions for existing problems. 3) Preceptors indicated that the major burden was having to repeat explanations to each preceptee, they were too busy to serve as preceptors, and their colleagues' had excessive expectations. Conclusion: We recommend practical management, including supplementary manpower, an education program, and compensation provided by the hospital administration with cooperation from colleges.

• 대한산업공학회지
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• 제35권2호
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• pp.150-159
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• 2009

The heterogeneous fleet vehicle routing problem(HVRP) is a variant of the classical vehicle routing problem in which customers are served by a heterogeneous fleet of vehicles with various capacities, fixed costs and variable costs. We propose a new conceptual HVRPCR(HVRP with customer restriction) model including additional customer restrictions in HVRP. In this paper, we develop hybrid particle swarm optimization(HPSO) algorithm with 2-opt and node exchange technique for HVRP. The solution representation is a n-dimensional particle for HVRP with N customers. The decoding method for this representation starts with the transformation of particle into a priority list of customer to enter route and limit of vehicle to serve each customer. The vehicle routes are then constructed based on the customer priority list and limit of vehicle to serve. The proposed algorithm is tested using 8 benchmark problems and it consistently produces high-quality solutions, including new best solutions. The numerical results show that the proposed algorithm is robust and efficient.

• 대한가정학회지
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• 제40권5호
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• pp.63-78
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• 2002

The movie costumes may serve to change individuals'ego identity, shift a gender identity to another one and make multiple and plural gender identities shared. The unique identities shown in movies can influence the audience to the extent that they will imitate characters's costumes or appearance in their real life, replacing their inner, unrealizable and private fantasy with real one. The purpose of this study is to review the movies produced in 1930's and thereafter by categorizing the socio-cultural gender concepts into masculinity and feminity. Masculinity and Feminity are not attributions fixed by some physical characteristics, but it tends to be changed or expended by some social factors over time. In short, it may be a flexible, plural, individual and self-introspecive attribute. Movies present diverse types of masculinity and feminity, and in particular, the movie costumes specify them. In other words, the costumes may be model means expressing the masculinity and feminity, and the gender identities shown in the movies tend to be imitated, re-created or assumed by the audience. All in all, the movie costumes serve to take on the confrontation of masculinity and feminity between inner, unrealizable and private fantasy and external reality and thereby, expand it from internal to external issue and thus, change or reform masculinity and feminity.